dellenbauqh



(ModeL) F. S. DELLENBAUGH. Stylographio Fountain Pen.

No.- 229,102. Patented June 22,1880.

flttorneys N. PETERS. PROTO-LITHOGRAFHER. WASHINGTON. I10.

UNITED STATES PATENT OFFICE.

FREDERICK S. DELLENBAUGH, OF NEW YORK, N. Y.

STYLOGRAPHIC FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 229,102, dated June 22,1880.

Application filed May 12, 1880. (ModeL) To all whom it may concern:

Be it known that I, FREDERICK S. DELLEN- BAUGH, of New York, in thecounty of New York, and in the State of New York, have invented certainnew and useful Improvements in Stylographic Fountain Pens; and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawingsand to the letters of reference marked thereon, making a part of thisspecification.

The nature of my invention consists in the construction of astylographic fountain-pen, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a longitudinal section of my pneumatic pen. Fig. 2 is adetailed View of the point D.

A represents the body of the pen, made hollow, in cylindrical or othersuitable form, for holding ink. In the upper end of the tube or cylinderA is screwed a cap, B, formed with a shoulder, Z), to come close to theend of the tube when screwed in tight. Close under this shoulder areperforations a a. The other or lower end of thetube A is formed orprovided with a hollow point, 0, in the extremity of which is soldered aspiral, I). This spiral D is made from a blank, I), of gold or othersuitable metal, turned on a mandrel in spiral form, and tipped withiridium, platinum, or other suitable hard substance, as shown at i,

I and then soldered in the hollow point 0 of the tube. In the hollowpoint 0, near the end, are perforations a; m.

F is a screw-cap fitting over the part 0,,and completely obstructing orclosingthe orifices m.

G is a capfor protecting the point D. Within the tube or cylinder A is apiston, I, moving closely and yet freely therein.

w are covered, when, by exhausting the air from the tube by means ofsuction, (month or otherwise,) the piston I is forced to the top and theink is drawn in at a; and fills the cylinder. The cap F is then screwedon, and the cap B adjusted so that only a small quantity of air canenter, and the pen is ready for use.

As the ink is exhausted the piston I gradually returns toward the lowerend of the tube or cylinder.

If preferable, the piston I may be drawn up by means of a rod to bescrewed intoits upper end when the cap B is removed.

The spiral point of my pen is flexible and soft, and gives as muchfreedom as a quill.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-

1. In a fountain-pen, a spiral point made of gold or other metal andtipped with iridium, platinum, or other suitable substance,substantially as herein set forth.

2. In a stylographic fountain-pen, the combination of the tube A,perforated cap B, perforated point C, spiral point D, cap F, andinterior piston, I, substantially as and for the purposes herein setforth.

In testimony that I claim the foregoing I have hereunto set my hand this3d day of May, 1880.

FREDERICK S. DELLENBAUGH.

Witnesses THOMAS MORAN, J. O. DAVIDSON.

